EVALUATION OF NONLINEAR AND DYNAMIC EFFECTS ON ASPHALT PAVEMENTS RESPONSE UNDER FWD LOADING

Several backcalculation techniques such as linear static, linear dynamic, and nonlinear static methods have been investigated in the context of a case study involving a site with a shallow bedrock and nonlinear base and subgrade materials. The best results were obtained using nonlinear analysis, implying that nonlinear effects are more significant than dynamic effects in terms of affecting pavement response. The analysis also showed that frequency-response-based methods can lead to serious errors if the measured FWD records are truncated before the motions fully decay in time. This applied to dynamic-frequency-backcalculation as well as enhanced static backcalculation that uses the zero-frequency deflection basin.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/16762797
• Corporate Authors:

  University of Mississippi, University

  Center for Advanced Infrastructure Technology
  University, MS  United States  38677-1848
• Authors:
  • Chatti, K
  • Waqar Haider, S
  • Lee, H S
  • Ji, Yangbeibei
  • Salama, H
• Publication Date: 2003-5

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 88-99
• Serial:
  • International Journal of Pavements
  • Volume: 2
  • Issue Number: 2
  • Publisher: University of Mississippi, University
  • ISSN: 1676-2797

Subject/Index Terms

• TRT Terms: Asphalt pavements; Backcalculation; Dynamic tests; Falling weight deflectometers; Frequency distributions; Nonlinear systems; Pavement design; Pavement performance; Static and dynamic tests
• Subject Areas: Data and Information Technology; Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00961585
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 25 2003 12:00AM